Home / 6,488,455.20-9,732,682.80-3,129,223.20

Finding the Fourth Proportional to 6,488,455.20, 9,732,682.80 and 3,129,223.20

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Solution

The fourth proportional to 6,488,455.20, 9,732,682.80 and 3,129,223.20 is: 4,693,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488,455.20 : 9,732,682.80 = 3,129,223.20 : x
  2. Step 2: Convert to fraction form
    6,488,455.20/9,732,682.80 = 3,129,223.20/x
  3. Step 3: Cross multiply
    6,488,455.20x = 9,732,682.80 × 3,129,223.20
  4. Step 4: Simplify right side
    6,488,455.20x = 30,455,736,816,000.96
  5. Step 5: Solve for x
    x = 30,455,736,816,000.96/6,488,455.20
  6. Step 6: Final answer
    x = 4,693,834.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.